86712139129 has 12 divisors (see below), whose sum is σ = 108927646912. Its totient is φ = 67567899960.

The previous prime is 86712139117. The next prime is 86712139133. The reversal of 86712139129 is 92193121768.

It is a happy number.

It is not a de Polignac number, because 86712139129 - 2¹⁵ = 86712106361 is a prime.

It is a super-3 number, since 3×86712139129³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (86712139169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51186957 + ... + 51188650.

Almost surely, 2^86712139129 is an apocalyptic number.

It is an amenable number.

86712139129 is a deficient number, since it is larger than the sum of its proper divisors (22215507783).

86712139129 is a wasteful number, since it uses less digits than its factorization.

86712139129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102375636 (or 102375625 counting only the distinct ones).

The product of its digits is 326592, while the sum is 49.

The spelling of 86712139129 in words is "eighty-six billion, seven hundred twelve million, one hundred thirty-nine thousand, one hundred twenty-nine".